I can't imagine this has much value, but it's a cool collector's piece. Dates from before 1968. Is this sort of thing common?
LCS in Brooklyn sells them for $5-6 Edit. For some reason they cost a little more if the full date is showing.
No. Stick it in a 2x2 flip. It is nice but not a huge premium. By the way.. You send a Mint Error to have it Attributed not just graded. You can Grade any coin but you have to pay an extra fee for Error Attribution.